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<head><meta charset="utf-8"><title>triage 2021-03-29 · t-compiler/performance · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/index.html">t-compiler/performance</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/triage.202021-03-29.html">triage 2021-03-29</a></h3>

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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/triage%202021-03-29/near/232366128" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/triage.202021-03-29.html#232366128">(Mar 30 2021 at 02:57)</a>:</h4>
<p>I won't be able to do triage tomorrow, have too much backlog to sort through unfortunately. <span class="user-mention" data-user-id="224872">@rylev</span> let me know what your availability is like - I may be able to eke out 30-60 minutes before Thursday if necessary</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/triage%202021-03-29/near/232401546" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/triage.202021-03-29.html#232401546">(Mar 30 2021 at 10:08)</a>:</h4>
<p>I won't be able to today, but I should have time tomorrow morning (Europe time)</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/triage%202021-03-29/near/232699723" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/triage.202021-03-29.html#232699723">(Apr 01 2021 at 03:47)</a>:</h4>
<p>Hm, <span class="user-mention" data-user-id="224872">@rylev</span> did this perhaps slip? I don't think I saw anything about it today...</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/triage%202021-03-29/near/232719709" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/triage.202021-03-29.html#232719709">(Apr 01 2021 at 08:12)</a>:</h4>
<p>Yep, sorry. Doing it now</p>



<a name="232726387"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/triage%202021-03-29/near/232726387" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/triage.202021-03-29.html#232726387">(Apr 01 2021 at 09:17)</a>:</h4>
<p>Not such a great week: <a href="https://github.com/rust-lang/rustc-perf/pull/859">https://github.com/rust-lang/rustc-perf/pull/859</a></p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/triage%202021-03-29/near/232752264" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/triage.202021-03-29.html#232752264">(Apr 01 2021 at 13:03)</a>:</h4>
<p>One thing I keep noticing when trying to look more closely into where a given regression came from is that the detailed view on perf.rlo (<a href="https://perf.rust-lang.org/detailed-query.html?commit=5b33de3340c7b36646af46303a30f7066b4bd7db&amp;base_commit=db492ecd5ba6bd82205612cebb9034710653f0c2&amp;benchmark=ucd-check&amp;run_name=incr-unchanged">pages like this one</a>) is too noisy to compare different runs. It's great for getting an overview where the compiler roughly spends its time for a given test case -- but when comparing two different runs it's almost useless. I hope we can have instruction counts there too at some point (or have more test iterations in order to reduce noise)</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/triage%202021-03-29/near/232758072" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/triage.202021-03-29.html#232758072">(Apr 01 2021 at 13:42)</a>:</h4>
<p>Is it odd that that page <span class="user-mention" data-user-id="124287">@mw</span> linked does not let one sort by “Time delta” (%)</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/triage%202021-03-29/near/233295783" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/triage.202021-03-29.html#233295783">(Apr 06 2021 at 10:16)</a>:</h4>
<p>That's probably easy to fix?</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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